Maintenance of hard shoulders has become an increasing problem with cable tracks and other utility trenches being cut to facilitate and enhance technology, this combined with ageing surfaces showing rutting and depressions, which hold ponding water causing surface breakdown and eventual potholing is a never ending maintenance problem.

Ralumac Hard Shoulder Restoration is the long-term maintenance solution, which regulates the ruts and depressions with its base coat taking out depths up to 75mm, following by the wearing / top coat giving an excellent riding surface with texture. The finished surface has very high rut resistance, is waterproof and can be surface dressed at any time in the future.

An extra benefit from this Ralumac design is the ability to hold back fatty areas from breaking through!

Technical details:

(0mm/8mm aggregate grading
– alternative aggregate gradings are available)

Aggregate:Selected Coarse aggregates
Fine aggregate:High quality crushed aggregate
Filler:Ordinary Portland Cement
Skid resistance: Typically 65
Texture depth:Typically 1.3mm+
Marshall stability (KN):10+
Flow value: (mm)4
Binder content:5% - 8% by weight
Void content: 2% - 6% by volume
Coverage rate: Will very depending on the shape of the carriageway.

Application process: Ralumac is cold-applied through a specially designed continuous flow machine. Daily outputs in excess of 5,000m² can be achieved with minimal disruption to traffic. Application is normally undertaken is layers with the initial regulating layer up to 60mm, followed by a uniform wearing course carpet of 8mm in thickness. The new Ralumac surface can be trafficked in 15 to 20 minutes. No rolling is required as the traffic action kneads the material, closing up the surface rendering it virtually impervious.

For more information on this product contact RMS here